Fiber optic jumper yog qhov tseem ceeb rau txoj kab sib txuas hauv fiber optic cabling. Thaum xaiv fiber ntau optic jumper, peb ib txwm pom cov lus PC / APC / UPC, xws li LC / APC fiber ntau jumper, SC / APC fiber ntau jumper, SC / PC fiber jumper, ST / UPC fiber jumper, thiab lwm yam, yog li koj puas paub PC / APC / UPC sawv cev dab tsi?
PC / APC / UPC yog dab tsi?
PC / APC / UPC yog hais txog kev sib tsoo sib txawv ntawm cov kab hluav taws xob fiber ntau txuas ntawm cov kab hluav taws xob optic jumper kab, thiab kev sib tsoo sib txawv cov qauv txiav txim siab qhov kis tau zoo ntawm fiber ntau, feem ntau ua rau poob rov qab thiab poob zoo. Yog li dab tsi sib txawv ntawm peb txoj kev sib tsoo no?
1. Dab tsi yog lub PC?
PC (Kev Hu Tawm Hauv Lub Cev) yog qhov sib tsoo feem ntau ntawm cov fiber ntau txuas ntawm fiber optic jumper, uas tau siv dav hauv cov koom ua ke hauv kev sib txuas lus. Txawm hais tias qhov kawg lub ntsej muag ntawm lub tshuab txuas hluav taws xob zoo nkaus li tiaj, nws yog qhov tseeb me ntsis khoov thiab polished, thiab lub siab tshaj plaws ntawm khoov yog lub hauv paus loj, uas tuaj yeem txo qhov cua ntawm qhov sib txig sib luag. Raws li cov xwm txheej ib txwm, rov qab poob ntawm cov fiber ntau jumper siv PC sib tsoo hom yog -40db.
2. UPC yog dab tsi?
Lub UPC (Ultra Lub Cev Sib Cuag) yog qhov kev hloov pauv ntawm lub PC uas ua kom qhov zoo tiav ntawm daim kawg ua tiav rau qhov chaw zoo dua. UPC, zoo li PC, muaj qhov siab tshaj plaws khoov ntawm qhov chaw ntawm lub fiber fiber, tab sis UPC tus xa rov qab poob yog siab dua PC's, feem ntau ntawm -50db (lossis tseem siab dua). Nws feem ntau siv rau hauv Ethernet network khoom siv (xws li ODF fiber faib cov hlua khib nyiab, cov hloov khoom siv xov xwm, thiab cov khoom siv hluav taws xob fiber ntau), thiab lub xov tooj.
3. APC yog dab tsi?
APC (Angle Physical Contact) yog qhov thev naus laus zis kawg ntawm kev sib tsoo fiber ntau kawg. Lub Sib Tsoo Lub Ntsej Muag Sib Tsoo ntawm 8 qib yog saws los ua kom qhov kawg sib tsoo ntau qhov tseeb thiab txo qis kev cuam tshuam. Txoj kev rov qab los poob yog txog -60db. APC feem ntau siv rau kev kho qhov muag RF thov hauv qhov siab loj xws li CATV.
Qhov sib txawv ntawm PC / APC / UPC yog dab tsi?
Tom qab cov lus qhia ntxaws ntxaws saum toj no ntawm PC / APC / UPC, koj yuav pom tias PC / APC / UPC muaj qhov sib txawv ntawm qhov kawg ntawm lub ntsej muag, rov qab poob, daim ntawv thov, thiab lwm yam.
PC thiab UPC yog ob hom planar interface. PC yog ib qho ntawm kev sib tsoo thaum ntxov nrog kev ua tsis zoo xa rov qab. UPC yog ua raws PC qauv kev hloov pauv, nws txoj kev poob rov qab yog qhov zoo dua li PC; APC yog cov txheej txheem sib tsoo nrog 8-degree Lub kaum ntse ntse rau ntawm qhov chaw kawg, uas tuaj yeem txo qhov cuam tshuam zoo. Kev poob rov qab yog qhov zoo dua li PC thiab UPC, thiab nws yog qhov tsim nyog rau kev siab thiab qhov sib txuas ntev.
Nco tseg: rov qab poob (txhais tau tias tsis xav txog kev poob) yog hais txog qhov kev xav rov qab los ntawm impedance mismatch hauv cov kab ke fiber ntau. Nws yog qhov xav txog ntawm nkawm ntawm kab lawv tus kheej. Cov teeb pom kev zoo ntawm qhov feem pua no feem ntau qhia ua -dB, thiab cov nqi ntau dua, zoo dua.
